FastAPI - File Handling
Which of the following is the correct way to return a file named
report.pdf from a FastAPI endpoint using FileResponse?Which of the following is the correct way to return a file named report.pdf from a FastAPI endpoint using FileResponse?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Check FileResponse parameters
FileResponse requires a path (positionally or via path= keyword) and optionally filename= keyword argument to suggest download name.Step 2: Validate options
return FileResponse(path='report.pdf', filename='report.pdf') correctly uses path and filename parameters. return FileResponse(filename='report.pdf') misses the required path. return FileResponse(file='report.pdf') uses the wrong parameter name 'file'. return FileResponse(file_path='report.pdf', download_name='report.pdf') uses invalid parameter names.Final Answer:
return FileResponse(path='report.pdf', filename='report.pdf') -> Option AQuick Check:
Correct FileResponse syntax = return FileResponse(path='report.pdf', filename='report.pdf') [OK]
Quick Trick: FileResponse needs path and filename parameters correctly named [OK]
Common Mistakes:
MISTAKES- Using wrong parameter names like file or file_path
- Omitting filename for download name
- Passing file path as a keyword argument incorrectly
Master "File Handling" in FastAPI
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